Why can't water form a ionic bond with hydrogen?
Dear student.
Ionic bonds are formed by the ions, and water is a compound. Moreover, hydrogen also does not forms ionic bond.
Hydrogen belongs to group 1 but its characteristics are similar to both group 1(alkali metals, Na, K etc) and group 17 (halogens, F, Cl, Br). It is a non-metal like halogens. Hydrogen has only one electron and this is present in 1s shell. So, it has one electron in its valence shell like alkali metals. However, as s shell can have a maximum of 2 electrons, it is one electron short of completely filled valence shell like halogens. Also, hydrogen is less electropositive than alkali metals and thus more energy ts required to remove the electron in comparison to alkali metals.
Due to its small size and presence of a lone electron in a hydrogen atom, the electron is tightly held by the nucleus. It is not easy for hydrogen to donate its electron easily and hence it prefers to share its electron and form a covalent bond like halogens.
Regards.
Ionic bonds are formed by the ions, and water is a compound. Moreover, hydrogen also does not forms ionic bond.
Hydrogen belongs to group 1 but its characteristics are similar to both group 1(alkali metals, Na, K etc) and group 17 (halogens, F, Cl, Br). It is a non-metal like halogens. Hydrogen has only one electron and this is present in 1s shell. So, it has one electron in its valence shell like alkali metals. However, as s shell can have a maximum of 2 electrons, it is one electron short of completely filled valence shell like halogens. Also, hydrogen is less electropositive than alkali metals and thus more energy ts required to remove the electron in comparison to alkali metals.
Due to its small size and presence of a lone electron in a hydrogen atom, the electron is tightly held by the nucleus. It is not easy for hydrogen to donate its electron easily and hence it prefers to share its electron and form a covalent bond like halogens.
Regards.